http://www.adbmag.com.au JANUARY 2018 | 2311.Nylon sliders stop axle getting chewed
2.Front wave disc is a 320mm Artrax
3.Boydy night testing at Eastern Creek
4.Engine runs an STM slipper clutchbike was built in 2012 it was far
from finished. We spent hours
tuningandtestingtogetitjust
right. What we have ended up
withisabikethatmakesaton
of power but is easy to ride.
Thepowerissmooth,which
makesfindingtractioneasy
and makes carrying corner
speedmuchmoremanageable
whilestillbeingarocketdown
the straights.
Wehaveabunchofdifferentsprockets ranging from 13 to 14
teeth on the front and 44 to 48
on the rear, depending on the
tracks.Wehaveanadjustable
steering offset and a choice
betweena16.5-inchand
17-inch front wheel. We even
havetheoptionofa500cc
barrel and the ability to
customizeignitionmappingat
the track. All this along with
the ability to choose between
different compound slicks sothat we are able to adjust the
bike to specifi cally suit any
track we go to.OWNER/MANAGER
LUKE TRAILL
Due to injuries, marriage,
children and buying a house I
had decided to hang up my
racing boots and take on a
coaching role. This meant my
bike was sitting unused so I
made the decision to let Boydy
ride it in the Newcastle
International Supermoto to try
his hand. He was really lucky
because he got to jump on a
supermoto bike already set up
and didn’t have to go through
the pain of developing one
from scratch.
A lot of research and
development went into
building the bike as I’m very
particular. My fi rst ride told me
a lot of work was needed. The
bike turned left really well but
struggled turning right so the
decision was made to
Computrack it.
Basically this means the bike
is stripped to the frame and
it’s computer aligned for
optimum traction and
handling.
For the 2012 season we
fi tted an Athena big-bore kit to
turn the bike into a 500cc so I
could contest the S1 Pro
Unlimited class at the
Australian supermoto titles. I
instantly gelled with the 500
and came home with the title.FACTORY RIDE / READERS RIDE / HERITAGE / ACTION / OAS / BUYERS GUIDE
1 Luke’s bike was built while he
was sponsored by Yamaha, with
the titanium ’pegs and
adjustable-offset triple-clamps
being factory parts supplied by
the Graves Yamaha team.
2 The STM slipper clutch has a
modifi ed spring so that it
doesn’t totally eliminate engine
braking, making it easier to
back the bike into turns.
3 Luke’s engine has two
cylinders available. One a
450cc unit and the other an
Athena 500cc cylinder.
4 The 450 runs the same
mapping as Jay Marmont’s
YZ450F when he won
back-to-back Australian titles
but when the 500cc cylinder is
fi tted the mapping is altered.
5 The rear rim is 5.5 inches
wide. This gives the bike
excellent turning
characteristics, but the chain
can touch the edge of the rim.5 THINGS
YOU DIDN’T KNOW
ABOUT LUKE’SYZ500F
31 42MOTARD
FRONT GUARD